remove overwritten header
remove overwritten header

partly to have a better example for #1015

mtraynham/dc.js,r4j4h/dc.js,TheDataShed/dc.js,aaronhoffman/dc.js,TheDataShed/dc.js,mtraynham/dc.js,dc-js/dc.js,mtraynham/dc.js,dc-js/dc.js,Hauenstein/dc.js,becompany/dc.js,mtraynham/dc.js,becompany/dc.js,maackle/dc.js,r4j4h/dc.js,r4j4h/dc.js,dc-js/dc.js,r4j4h/dc.js,aaronhoffman/dc.js,ruhley/dc.js,ruhley/dc.js,Hauenstein/dc.js,maackle/dc.js,Hauenstein/dc.js,aaronhoffman/dc.js,TheDataShed/dc.js,TheDataShed/dc.js,ruhley/dc.js,Hauenstein/dc.js,maackle/dc.js,maackle/dc.js,becompany/dc.js,r4j4h/dc.js,aaronhoffman/dc.js,TheDataShed/dc.js,mtraynham/dc.js,dc-js/dc.js,ruhley/dc.js,ruhley/dc.js,dc-js/dc.js,maackle/dc.js,Hauenstein/dc.js,aaronhoffman/dc.js